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Ed Wright · 09-11-2019, 08:14 PM

A local customer of mine works in the laboratory at the local Sunoco refinery ran some flow tests, and filtration tests on oil filters. Fram tested worst of all, in all tests they ran.
Wix (NAPA) filters flowed more oil, and trapped the most dirt. They used a spin on Chevy filter, because the most common filter. Wix. also makes NAPA filters. The number they tested was the common one quart filter. The NAPA number is 1061.

09-11-2019, 08:14 PM	#5
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Fram Racing HP8 Oil filter A local customer of mine works in the laboratory at the local Sunoco refinery ran some flow tests, and filtration tests on oil filters. Fram tested worst of all, in all tests they ran. Wix (NAPA) filters flowed more oil, and trapped the most dirt. They used a spin on Chevy filter, because the most common filter. Wix. also makes NAPA filters. The number they tested was the common one quart filter. The NAPA number is 1061. __________________ Ed Wright 4156 SS/JA Last edited by Ed Wright; 09-12-2019 at 06:20 PM. Reason: Still can’t spell